Class Notes (811,179)
Canada (494,542)
Brock University (11,942)
CHYS 1F90 (374)
Lecture 3

CHILD AND YOUTH lecture 3 :)

5 Pages
Unlock Document

Brock University
Child and Youth Studies
Lauren Mc Namara

CHYS 1F90Lecture 3 CHYS 1F90Lecture 3 Dr J McNamaraDr J McNamaraFallWinter 2011FallWinter 2011Bronfenbrenners Ecological Systems TheoryBronfenbrenners Ecological Systems TheoryEcological Systems TheoryEcological Systems TheoryDetailed characterization of various environmental influences on developmentEnvironment is a series of nested systemsMicrosystemMesosystemExosystemMacrosystemEcological Systems TheoryEcological Systems TheoryContributionsContributionsrichest description of environmental influencessuggests interventions for optimizing development at various levels of societyCriticismsCriticismsgeneralizability from one environment to next questionednot complete a complement to existing theoriesLecture OverviewBiological Models of DevelopmentLecture OverviewBiological Models of DevelopmentPrinciples of hereditary transmissionHow are genes expressedChromosomal and genetic abnormalitiesBehavioural geneticsDetermining heritabilityInteraction of heredity and environment Nature and NurtureConceptionConception Fathers spermMothers ovumZygote with 46 chromosomes in total 23 from each parentMitosisMitosisMitosis begins after fertilizationThe process by which a cell separates chromosomes in its nucleus into two identical cellsThe ChromosomesThe ChromosomesEach chromosome contains genesSections of chromosomesMade up of DNAThe chemical code for developmentWhy Not 50 mom50 dadWhy Not 50 mom50 dadMeiosisCrossingOverMeiosisCrossingOverChromosomes within sperm cells divide in half before they fertilize an ovum or egg cellChromosomes with egg cells divide in half before they are fertilizedThe splitting is randomThe randomness creates variation in the resulting embryoThis complicated process is call MeiosisMale or FemaleMale or Femalerd23 pair of chromosomesMales have X and YFemales have X and XSex of child determined by fathers sperm Male or FemaleMale or FemalerdNote 23 chromosome
More Less

Related notes for CHYS 1F90

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.